public SpeechToTextService()
{
try
{
if (_Stt == null)
{
_Stt = new SttClient();
_Stt.StateChanged += _Stt_StateChanged;
_Stt.DefaultLanguageChanged += _Stt_DefaultLanguageChanged;
_Stt.EngineChanged += _Stt_EngineChanged;
_Stt.ErrorOccurred += _Stt_ErrorOccurred;
_Stt.RecognitionResult += _Stt_RecognitionResult;
// Expected State : Created
CurrentSttLanguage = _Stt.DefaultLanguage;
_Stt.Prepare();
Console.WriteLine("DefaultLanguage ..." + _Stt.DefaultLanguage + ", Engine : " + _Stt.Engine);
}
}
catch (Exception e)
{
Console.WriteLine("SttClient Exception: " + e.Message);
if (e is NotSupportedException)
{
Console.WriteLine("SttClient is not supported...");
}
else if (e is UnauthorizedAccessException)
{
Console.WriteLine("UnauthorizedAccessException...");
}
}
}
IObservable <string> Listen(RecognitionType type, SilenceDetection?silence = null) => Observable.Create <string>(ob =>
{
var handler = new EventHandler <RecognitionResultEventArgs>((sender, args) =>
{
//args.Result == ResultEvent.ResultEvent.FinalResult
//args.Result == ResultEvent.PartialResult
});
var client = new SttClient();
client.RecognitionResult += handler;
client.Start("en-US", type);
if (silence != null)
{
client.SetSilenceDetection(silence.Value);
}
return(() =>
{
client.Stop();
client.RecognitionResult -= handler;
});
});
/// <summary>
/// Dispose Speech-to-Text service
/// </summary>
public void Dispose()
{
Console.WriteLine("SpeechToTextService.Dispose()");
try
{
if (_Stt == null)
{
return;
}
_Stt.DefaultLanguageChanged -= _Stt_DefaultLanguageChanged;
_Stt.EngineChanged -= _Stt_EngineChanged;
_Stt.ErrorOccurred -= _Stt_ErrorOccurred;
_Stt.RecognitionResult -= _Stt_RecognitionResult;
_Stt.StateChanged -= _Stt_StateChanged;
_Stt.Unprepare();
_Stt.Dispose();
_Stt = null;
}
catch (Exception e)
{
Console.WriteLine("SpeechToTextService.Dispose() : Error - " + e.Message); // Invalid Parameters Provided
}
}
